Vertical-type water heater



Dec. 13, 1927.

J. E. 'ERCANBRACK VERTICAL TYPE WATER HEATER Fild June 14, 1926 2 Shegts-Sheet l 0 Dec. 13, 1927.

JLE. ERCANBRACK VERTICAL TYPE WATER HEATER Filed June 14. 1926 2 Sheets-Sheet 2 @m WWW n I v A @N v 1 N MN MW, ,QN WW Patented Dec. 13, 1927.

UNITED STATES JOHN EDWARD ERCANBRACK, OF CHICAGO, ILLINOIS.

' VERTICAL-TYPE WATER HEATER.

Application filed June 14, 1926. Serial No. 115,801.

My present invention relates to the provision of what may be styled a vertical type of water heater, or heat transfer unit, in that the heat transfer tubes are arranged 1n vertical relation or rank. Such arrangement is necessary for associating the mechanism with certain styles of boilers in which there is not sutficient unobstructed space to insert the heater otherwise.

My objects are simplicity in constructlon and economy, and I have alsodesired to employ the method of expanding and swaging the ends of the inner tubes in making assembly with the head as that construction has been found eminently satisfactory in other relations and is lessexpensive than, and has other advantages over, a threaded assembly.

As will hereafter be seen, the heat transfer is accomplished in outer and telescopically arranged inner tubes which are lnserted within a boiler. The said tubes being associated with a head exterior of and secured to the boiler, the head being provided w1th suitable chambers and ports for introducing water to and securing its discharge from the apparatus and its flow through the heat transfer elements.

I secure the production of such a hot water heater and the accomplishment of the foregoing objects by means of the structure illustrated in the accompanying drawings in which- Fig. 1 is a side elevation of the complete structure;

"Fig. 2 is a central vertical section through the exterior head, fragments of the heat transfer tubes being shown in assembly and the aforesaid structure bein shown in assembly with a fragment of a oiler plate;

Fig. 3 is a front elevation of the head; i

Fig. 4. is a section on line 4.-4 of Fig. 2;

Fig. 5 is a section on line 55 of Figs.

2 and 4, except that the section has been extended throughout the structure;

gig. 6 is a section on line 6-6 of Fig. 2; an

Fig. 7 is a section on line 77 of Fi 2.

Similar reference characters have een employed throughout the respective views to designate similar parts' I The exterior head is substantially rectangular and about twice as tall as it is broad to permit of the vertical arrangement or ranking of the heat transfer tubes, the front than the interior wall 10 thereof is extendedabove and below the chambered portion of the structure and is provided in each corner with bores 11, as shown in Figs. 2, 3 and 7, for the passage of stud bolts 12, tapped into the boiler plate 13 and on the forward ends of these stud bolts are nuts 14 to hold the head in assembly with the boiler. The rear wall 15 of the head is provided with a single enlarged aperture to receive the inner ends of the exterior tubes 16 of the heat transfer portion of the structure. These tubes 16 are sweat-ed, or brazed. or otherwise suitably secured in a plate 17 which is about the size of and registers with the rear wall 15 of the head, but which, in a complete assembly therewith, is separated from the rear wall 15 by a soft metal washer or gasket 18. A somewhat similar soft metal washer or gas ket 19 is interposed between the plate 17 and the boiler plate 13, except that the gasket 19 is provided with a lateral flange 20, which serves to space the exterior tubes 16 from the boiler plate 13.

Dividing the interior of the head into front and rear chambers is a wall or partition 21 which is provided with vertically ranked perforations 22 to receive the ends of the inner tubes 23, which are headed as at 24 to abut the rear side of the artition 21 and the inner ends of whic are swa 'ed over as at 25 upon the front face of the wall 21. The upper corners of the wall 21, as shown in Fig. 7, are of less width chamber of the head and extending forwardly from the lateral edges of the reduced portion are Walls 26, shown in Fig. 5, which are connected by a vertical wall 27, spaced from Wall 21 and a bottom wall 28 running to the front wall 10 of the head and between the side walls of the casing and the walls 26. The front Wall 10 of the head is provided with perforations 29, 30 and 31 aligning with the perforations22 in wall 21 and the wall 27 is provided with a perforation 32 back of perforation 29 and in front of the top interior tube 23. These perforations'29 to 32 inclusive, are for the purpose of permitting the insertion of the necessary tools for swaging over or capsizing the inner ends of the tubes 23.

It will be seen from the foregoing description and the drawings referred to that the chamber behind the wall 21 is in communication with the chamber immediately behind aperture 29, and I therefore tap opening 32 and close it with a plug 33. It will further be seen that the forward ends of each of the interior tubes open into the chamber in front of Wall 21 and that each of the exterior tubes open into the chamber at the rear of wall 21, and from this chamber have access to the reduced chamber immediately behind opening 29. Openings 29, 30 and 31 are threaded or tapped, opening 29 being for connection with the pipe for discharging the heated Water While openings 30 and 31, or either of them, are for admitting cold Water to the device.

Lateral tapped openings 34 may be provid- 4 ed communicating with the cold Water entrance chamber and also lateral openings 35 may be provided communicating with the hot Water chamber for clean out or other purposes.

From the foregoing description taken in connection with the drawings it will be seen that cold Water may be admitted through all or either of ports 30, 31 or 3 1, and will then flow into the interior tubes 23 to the rear ends of said tubes and will then flow for- \vardly through exterior tubes 16 into the compartment behind Wall 21 and from thence to the auxiliary compartment behind port 29 and out through port 29.

The rear ends of the exterior tubes 16 are preferably closed by brazing therein dished discs 36 and the exterior tubes are connected by plate 37. A shoe 38 is also referably placed under the inner end of tie bottom of the lowermost exterior tube.

I have provided a vent or bleed hole 39 in the top of wall 27 to prevent the accumulation of air in the top of the cold Water chamher in front of the Wall 21.

Having described my invention What I claim as new and desire to secure by Letters Patent is- A head for Water heaters comprising a casing having a central transverse partition forming front and rear chambers and an apcrtured rear Wall, a Wall forming with a portion of the front and side Walls of said casing an auxiliary chamber located in one end of said front chamber and spaced from said transverse partition and communicating with said rear chamber and a plurality of aligning openings in the front Wall of said casing and said central transverse partition, one of the openings in said front Wall opening into said auxiliary chamber and a tapped opening in the rear wall of said auxiliary chamber opposite the opening in the front Wall thereof.

JOHN EDWVARD ERCANBRACK. 

